Asthma
Conditions
Keywords
Dry Powder Inhaler
Brief summary
Healthy male and female volunteers without asthma will be recruited to enroll in a single dose 3-way crossover study of the safety and pharmacokinetics of albuterol when administered using the Halix (TM) albuterol unit dose disposable dry powder inhaler (DPI) and the albuterol HFA (hydrofluoroalkane) MDI inhaler.
Detailed description
The study objective is to compare the safety of albuterol in a dry powder inhaler (DPI) and albuterol in an HFA metered dose inhaler (MDI) after single albuterol doses of 90mcg and 180mcg delivered by the DPI and 180mcg delivered by the MDI. Another study objective is to compare the pharmacokinetics (metabolism) of albuterol with the two inhalers in all subjects treated. To participate in the study, subjects must provide written informed consent, washout any prohibited medications and pass all the screening criteria. Once this is done, there will be 3 treatment visits for each subject. At each of these visits, the subject will inhale from either the DPI or the MDI. Assignment of subjects to one of six (6) unique sequences of treatment will be according to a randomized scheme. The subject will inhale albuterol either once from the DPI (90mcg), twice from the DPI (180mcg) and twice from the MDI (180mcg). Following inhalation of the study drug, there will be a series of assessments taken at times postdose with spirometry (FEV1) measured up to 2 hours postdose, vital signs measured up to 10 hours post dose, ECGs obtained up to 5 hours postdose, blood taken to measure potassium and glucose up to 6 hours postdose, and blood for pharmacokinetic evaluation obtained up to 10 hours postdose. A washout period of 60 to 192 hours will separate each of the 3 treatment visits. Following these visits, there will be a study concluding visit 3 to 10 days later.
Interventions
DRUGAlbuterol DPI 90mcg
Albuterol unit dose disposable DPI delivers 90mcg of albuterol in the excipient lactose with each inhalation. Albuterol 90mcg will be given on one of the 3 treatment days. One inhalation from the DPI will be used.
DRUGAlbuterol DPI 180mcg
Albuterol unit dose disposable DPI delivers 90mcg of albuterol in the excipient lactose with each inhalation. Albuterol 180mcg will be given on one of the 3 treatment days. Two inhalations from the DPI will be used to deliver the 180mcg dose
Albuterol HFA MDI delivers 90mcg of albuterol with each inhalation. Albuterol 180mcg will be given on one of the 3 treatment days. Two inhalations from the MDI will be used to deliver the 180mcg dose
Sponsors
PharPoint Research, Inc.
Kramer Consulting, LLC
Concentrx Pharmaceuticals, Inc.
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE
Intervention model description
3-way single dose crossover
Eligibility
Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes
Inclusion criteria
Subjects are required to meet ALL of the following inclusion criteria to be eligible for enrollment in the study. 1. Has provided written informed consent 2. Speaks and understands the English language 3. Males or females 18 to 55 years of age (inclusive) at the Consent Visit 4. Nonsmoker or ex-smoker who has abstained from smoking for at least 1 year prior to the Consent Visit and who has a ≤ 15 pack/year history of lifetime cigarette use 5. Has no history of use of nicotine gum, nicotine patch, e-cigarettes/vaping preparations in the 3 months before the Consent Visit 6. Has a body mass index (BMI) of 18.5 to 35.0 (calculated as kg/m2) 7. Has never had a diagnosis of asthma, exercise-induced bronchospasm, chronic obstructive pulmonary disease, or other chronic respiratory disease or chronic upper airway condition (seasonal or perennial allergic rhinitis is not exclusionary; however, nasal polypectomy within the 12 months prior to the Screening Visit is exclusionary 8. Has a FEV1 ≥ 80% of predicted normal for age, gender, height and ethnicity (percent of predicted normal values for FEV1 will be calculated using National Health and Nutrition Examination Survey III \[NHANES III\]) calculation at the Screening Visit 9. Has a FEV1/FVC ratio ≥ 0.70 at the Screening Visit 10. Ability to maintain a peak inspiratory flow rate of at least 60 L/min measured by the In-check DIAL device at the medium resistance setting. 11. At the Screening Visit, demonstrates adequate understanding of and ability to successfully inhale from an MDI as determined by the investigator and through demonstrated successful use of the Vitalograph® aerosol inhalation monitor (AIM™) (training/validation device for MDI) using a placebo MDI canister. \[Note: potential subjects who cannot demonstrate successful MDI technique using with the AIM device (with placebo canister) after in-clinic training at the Screening Visit will not be eligible for continued participation in the study.\] 12. At the Screening Visit, demonstrates adequate understanding of and ability to successfully inhale when using the Halix™ UDDI \[Note: a placebo UDDI not containing any drug powder will be supplied for each potential subject to become familiar with the inhaler and practice inhalation technique\] \[Note: potential subjects who cannot demonstrate successful inhalation technique using the Halix™ UDDI after in-clinic training at the Screening Visit will not be eligible for continued participation in the study\]. 13\. Willing and able to comply with all aspects of the study protocol including avoiding use of certain concomitant medications and attending the required clinic visits (ie, has no conflicting plans that would prohibit attendance at scheduled study visits including each of the threeTreatment Day Visits) \-
Exclusion criteria
Subjects will be excluded from participation in the study if ANY of the following criteria are present: 1. Female subjects of childbearing potential (CBP) who are not using reliable contraception (eg, abstinence, double barrier method, oral/implantable/transdermal contraception, Depo-Provera, intrauterine device); a woman is of CBP unless she is premenarchal, is at least 2 years postmenopausal, is without a uterus and/or both ovaries, has had a bilateral tubal ligation, or has undergone the Essure procedure with confirmation of tubal blockage. \[Note: If a female is identified as less than 2 years postmenopausal, a serum follicle-stimulating hormone (FSH) determination will be performed as a part of screening laboratory assessments. If a FSH result of \< 40 mIU/mL is obtained, the female will be determined to be of CBP and her unwillingness to use reliable contraception as defined above will be exclusionary for the study.\] 2. A woman who is pregnant (has a positive serum pregnancy test at Screening), is lactating, or is likely/planning to become pregnant during the study 3. Vital signs at the Screening Visit (after at least 2 minutes seated at rest) showing SBP either \< 80 mmHg or \>150 mmHg; DBP \> 90 mmHg; or HR either \< 40 bpm or \> 100 bpm (vital signs outside these criteria may be repeated once after an additional seated rest period of at least 2 minutes- if vital signs
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Forced Expiratory Volume in 1 second (FEV1) before and after oral inhalation of albuterol on 3 different treatment days | At each of the 3 treatment visits, FEV1 (forced expiratory volume in one second) will be measured prior to drug administration and 6 times after dose- at 5 min, 15 min, 30 min, 45 min, 60 min and 120 min. | Change from treatment day baseline in forced expiratory volume in one second (FEV1) will be assessed serially up to 120 minutes after each of 3 single doses of inhaled albuterol |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Systolic and diastolic blood pressure before and after oral inhalation of albuterol on 3 different treatement days | Serial measurements of systolic and diastolic blood pressure will be taken at baseline (15-40 mnutes pre-dose) and at 15, 30, 45, 60, 120 minutes post dose and at 3, 4, 5, 6, 10, 12, and 14 hours post-dose | Change from treatment day baseline in blood pressure will be evaluated by the maximum change (systolic) and minimum change (diastolic) from baseline blood pressure, and the weighted mean change form baseline in systolic and diastolic blood pressure |
| Serum potassium before and after oral inhalation of albuterol on 3 different treatment days | Serial measurments of serum potassium will be obtained at 10, 20, 30, 45, 60 and 120 minutes post-dose and 3 and 4 hours post-dose | Change from treatment day baseline in serum potassium after each of 3 single doses of inhaled albuterol will be evaluated by the description of change from baseline values |
| Serum glucose before and after oral inhalation of albuterol on 3 different treatment days | Serial measurments of serum potassium will be obtained at 10, 20, 30, 45, 60 and 120 minutes post-dose and 3 and 4 hours post-dose | Change from treatment day baseline in serum glucose after each of 3 single doses of inhaled albuterol will be evaluated by the description of change from baseline values |
| Electrocardiographic QTc interval before and after oral inhalation of albuterol on 3 different treatment days | Serial ECGs (electrocardiograms) will be taken at baseline (5-40 minutes pre-dose), 10 min post-dose, 50 min post-dose, and 5 hours post-dose. | Change from treatment day baseline ECG (electrocardiogram) will assess the maximum and mean change from baseline of the corrected QT interval (QT measures the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle) following each of the 3 single doses of inhaled albuterol study drug. |
Other
| Measure | Time frame | Description |
|---|---|---|
| Peak plasma concentration (Cmax) of albuterol after oral inhalation on 3 different treatment days | PK samples to be collected postdose at 5, 10, 20, 30, 45, 60, and 120 minutes, and at 3, 4, 5, 6, 10, 12, and 14 hours post-dose | Predose and post dose measurement of albuterol in plasma will be assessed after each of 3 single doses of inhaled albuterol. |
| Estimation of the terminal elimination rate constant (lambda z) of albuterol after oral inhalation on 3 different treatment days | PK samples to be collected postdose at 5, 10, 20, 30, 45, 60, and 120 minutes, and at 3, 4, 5, 6, 10, 12, and 14 hours post-dose | Predose and post dose measurement of albuterol in plasma will be assessed after each of 3 single doses of inhaled albuterol. |
| Area under the plasma concentration versus time (AUC0-t) of albuterol after oral inhalation on 3 different treatment days | PK samples to be collected postdose at 5, 10, 20, 30, 45, 60, and 120 minutes, and at 3, 4, 5, 6, 10, 12, and 14 hours post-dose | Predose and post dose measurement of albuterol in plasma will be assessed after each of 3 single doses of inhaled albuterol. |
| Area under the plasma concentration versus time to infinity (AUC0-inf) of albuterol after oral inhalation on 3 different treatment days | PK samples to be collected postdose at 5, 10, 20, 30, 45, 60, and 120 minutes, and at 3, 4, 5, 6, 10, 12, and 14 hours post-dose | Predose and post dose measurement of albuterol in plasma will be assessed after each of 3 single doses of inhaled albuterol. |
| Time to maximum plasma concentration (tmax) of albuterol after oral inhalation on 3 different treatment days | PK samples to be collected postdose at 5, 10, 20, 30, 45, 60, and 120 minutes, and at 3, 4, 5, 6, 10, 12, and 14 hours post-dose | Predose and post dose measurement of albuterol in plasma will be assessed after each of 3 single doses of inhaled albuterol. |
| Apparent terminal half-life (t 1/2) of albuterol after oral inhalation on 3 different treatment days | PK samples to be collected postdose at 5, 10, 20, 30, 45, 60, and 120 minutes, and at 3, 4, 5, 6, 10, 12, and 14 hours post-dose | Predose and post dose measurement of albuterol in plasma will be assessed after each of 3 single doses of inhaled albuterol. |
Countries
United States
Outcome results
None listed